52378476 ÷ 521 
Let's see how many times 521 fits into 52378476.

Advancing to step 1:
When dividing 5 by 521, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (2) from the dividend, add it to 5, then carry on: 52 / 521

Going ahead to step 2:
521 goes into 52 0 times with a remainder of 52.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 52, we get 52.
Fetch the next digit (3) from the dividend, attach it to 52 and continue: 523 / 521

Advancing to step 3:
The number 521 fits into 523 1 times, leaving a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 521 from 523 and we're left with 2.
Grab the next digit (7) from the dividend, add it to 2, then carry on: 27 / 521

Advancing to step 4:
521 goes into 27 0 times with a remainder of 27.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 27 leaves us with 27.
Include the next digit (8) from the dividend after 27, then repeat: 278 / 521

Going ahead to step 5:
521 can be fit into 278 0 times, resulting in a remainder of 278.
Write down 0 as next digit of the result. 
Result so far: 100.0
Subtracting 0 from 278 leaves us with 278.
Fetch the next digit (4) from the dividend, attach it to 278 and continue: 2784 / 521

Step 6:
521 goes into 2784 5 times with a remainder of 179.
The next digit of our result is 5. 
Result so far: 1005.0
Subtract 2605 from 2784 to get 179.
Bring next digit (7) of the dividend behind the 179 and repeat the process: 1797 / 521

Step 7:
When dividing 1797 by 521, we get 3 with a remainder of 234.
Put 3 as the next digit of the answer. 
Result so far: 10053.0
Subtract 1563 from 1797 to get 234.
Fetch the next digit (6) from the dividend, attach it to 234 and continue: 2346 / 521

Advancing to step 8:
When dividing 2346 by 521, we get 4 with a remainder of 262.
The next digit of our result is 4. 
Result so far: 100534.0
If we subtract 2084 from 2346, we get 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Step 9:
2620 divided by 521 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 100534.5
The remainder is 15 after subtracting 2605 from 2620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 10:
When dividing 150 by 521, we get 0 with a remainder of 150.
The number 0 becomes the next digit in our result. 
Result so far: 100534.5
If we subtract 0 from 150, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 11:
If we divide 1500 by 521, we get 2 and a remainder of 458.
Put 2 as the next digit of the answer. 
Result so far: 100534.502
Subtract 1042 from 1500 to get 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Advancing to step 12:
521 goes into 4580 8 times with a remainder of 412.
Put 8 as the next digit of the answer. 
Result so far: 100534.5028
Deduct 4168 from 4580 and we're left with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Step 13:
4120 divided by 521 is 7 with a remainder of 473.
Record the quotient 7 as the next digit in the result. 
Result so far: 100534.50287
If we take 3647 away from 4120, we end up with 473.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4730, and continue the process.

On to step 14:
521 goes into 4730 9 times with a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 100534.502879
If we subtract 4689 from 4730, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 15:
410 divided by 521 is 0 with a remainder of 410.
The next digit of our result is 0. 
Result so far: 100534.502879
Deduct 0 from 410 and we're left with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Moving on to step 16:
4100 divided by 521 is 7 with a remainder of 453.
The next digit of our result is 7. 
Result so far: 100534.50287907
If we subtract 3647 from 4100, we get 453.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4530, and continue the process.

In conclusion, the division gives 100534.50287907 with a balance of 4.53e-07.